Velodyne DPS-12. Excellent condition. A few swirl marks on the piano black gloss finish. Works flawlessly. Great sounding sub at this price point. Digital Signal Processing (DSP) is at the heart of this subwoofer, providing less distortion via its front panel control. In addition, the DPS-12 has a 12 inch forward firing driver (9.9 inch piston diameter), as well as four convenient presets (Movies, R&B-Rock, Jazz-Classical and Games,) volume control and an exclusive night mode setting. A 12 inch driver ensures that the low end of your home stereo or home cinema environment will always be of optimum quality. Digital signal processing Digital signal processing is at the heart of all Velodyne Digital Power Slot (DPS) Series subwoofers. These versatile subwoofers provide less distortion, customized listening modes and the most output possible. All signal processing of the DPS series subwoofers is managed digitally, and is controlled via the DPS series' unique front touch control panel. Adjustable presets It comes with four presets (Movies, R&B-Rock, Jazz-Classical and Games) as well as a volume control. Adapt your home stereo or home cinema settings to what you are watching that evening. 400watt output 200watts RMS/400watts of dynamic power makes this subwoofer an ideal choice for the most demanding of situations. No box, so no shipping available. Local pick-up only. https://velodyneacoustics.com/pdf/dps/DPSManual.pdf